This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A126680 #3 Mar 30 2012 16:50:37 %S A126680 1,10,650,227500,386977500,3006815175000,102547431543375000, %T A126680 14946288147446906250000,9139670148451930618781250000, %U A126680 23146488841058967849982079062500000,240532409681630323860212020187339062500000,10187978717854649915906947316453923964296875000000,1750283547138817933292555967231683354203766362734375000000 %N A126680 Product_{i=4..n} Stirling_2(i,4). %Y A126680 Partial products of A000453. %K A126680 nonn %O A126680 4,2 %A A126680 _N. J. A. Sloane_, Feb 13 2007